A draft map of the initial bike-share locations planned for parts of Manhattan, Brooklyn and Queens. Click here to launch the full map.

New York City’s bike-share program will come to life this summer with 420 stations saturating Manhattan below 63rd Street and a chunk of northwestern Brooklyn, with a sprinkling in Long Island City, Queens.

A draft bike-share map released Friday by the Department of Transportation shows the city’s plans for the first wave of locations at which riders will be able to pick up bicycles for short trips.

The docking stations are to be placed in areas with wide or under-used sidewalk space, as well as in unused roadway areas where driving and parking are banned.

Transit officials said the placement of the stations came as a result of extensive community input. In some cases, those deliberations included lengthy and somewhat secretive meetings with local community boards.

In Manhattan, home to most of the initial bike-share locations in the draft map, the stations will stretch from the Staten Island Ferry to the southern edge of Central Park, extending the width of the island between the Hudson and East rivers.

Brooklyn would see stations from Greenpoint and Williamsburg stretching south to sections of the borough’s downtown area and extending east to Fort Greene and Bedford-Stuyvesant. Queens gets just 10 stations scattered around Long Island City.

Edward Reed/NYC Mayor’s Office

The system is scheduled to grow to some 10,000 bikes and 600 rental stations throughout the city by summer 2013. Earlier this week, city officials announced corporate sponsorship from Citigroup (after which the Citi Bike program will be named) and Mastercard. As a result of the sponsors, bike-share company Alta will operate the program at no cost to taxpayers.

Planning continues for the installation of additional docking stations in Brooklyn’s Park Slope, Cobble Hill, Prospect Heights and Crown Heights neighborhoods, as well as the Upper West Side and Upper East Side of Manhattan.

“New Yorkers created this plan during the past six months, contributing time and expertise in workshops, online and in dozens of meetings to discuss and plan the City’s newest transportation system,” DOT Commissioner Janette Sadik-Khan said in a statement.

The city held 33 bike sharing demonstrations and presented details to community board leaders 54 times since last September, according to the DOT.

A one-day access pass to the service costs $10, entitling users to 30 minutes with a bike. After that initial half-hour, prices escalate significantly as a bike remains in use. A $95 annual access pass entitles users to 45 minutes of free biking before the graduated charges kick in.

Critics noted that New York’s bike-share effort carries steeper user fees than similar programs elsewhere. “I can’t think of any other area where London is so much cheaper than New York: it’s just weird to me that New York would set the prices for this scheme so high,” wrote blogger Felix Salmon of Reuters.

But Sadik-Khan and the engineers of the system say that comparisons to a simple flat-fee bike rental are missing the point. New York’s bike-share scheme is intended as an extension of the existing transit system. Designers planned for riders to make short-haul trips of less than a few miles between bike-share stations, as a way to get around the city.

It’s not built for leisurely pedaling. City officials have stressed that bike share is for “transportation, not recreation,” and pricing is designed to encourage rapid turnover so that bikes can be quickly passed from one user to another.

In Washington D.C.’s popular bike-share system, 97% of monthly system members return their bikes within 30 minutes and thus incur no additional usage charge — a datapoint cited this week by transit officials in New York.